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A 150.0 g sample of a metal at 75.0°C isadded to 150.0 g of H2O at 15.0°C. The temperatureof the water rises to 18.4°C.Calculate the specific heat capacity of the metal, assuming thatall
Two conducting spheres, one having twice the diameter of the other, are separated by a distance that is large compared to their diameters. The smaller sphere has charge q and the larger sphere is un
The block leaves the spring at the spring's relaxed length and then travels over a horizontal floor with a coefficient of kinetic friction µk = 0.202. The frictional force stops the block in d
Can someone explain in detail how to do all the steps for thisproblem?Ascorbic acid is a compound consisting of three elements: C,H, and O. When a 0.214g sample is burned in oxygen, 0.320g ofCO2and
Antimony dissolves in hot concentrated sulfuric acid,H2SO4, or nitric acid, HNO3, toform solutions containing Sb(III). The sulfuric acid reactionproduces sulfur(IV) dioxide gas. What are the balance
A 2.0 kg wood block is launched up a wooden ramp that is inclined at a angle. The block's initial speed is . The coefficient of kinetic friction of wood on wood is .
A charge of +80 µC is placed on the x-axis at x=0. A second charge of -50 µC is placed on the x-axis at x = 50 cm. What is the magnitude of the electrostatic force on a third charge of 4
A certain substance, melting at 188-189 ºC, is suspected to be4-aminobenzoic acid. How could you be reasonably certain that the substance is actually 4-aminobenzoic acid and not another compou
A negative ion is moving east near the equator where the Earth's magetic field is horizontal to the north. The direction of the magnetic force on the ion is.
The structure of manganese fluoride can be described as a simplecubic array of manganese ions with fluoride ions at the center ofeach edge of the cubic unit cell.
A copper wire with a resistance of 4.00Ω at 20.0o C has a length of 5.00 m. If it is to have the same resistance and cross sectional area at 40.0o C to what length must it be cut?
Only two horizontal forces act on a 3.0 kg body that can move over a frictionless floor. One force is 9.0 N, acting due east, and the other is 7.2 N, acting 56° north of west. What is the magnit
You want a solution of ethylene glycol, C2H4(OH)2, that has a glycol mole fraction of 0.125. How many grams of the glycol should you combine with 950 grams of H2O? What is the molality of the solut
A person with perfect pitch sits on a bus bench listening to the 455 Hz horn of an approaching car. If the person detects a frequency of 475 Hz, how fast is the car moving?
A car traveling 5m/s slams on its brakes, creating an acceleration of -2 m/s2. How far did the car travel after it applied its brakes?
If you want to prepare a solution that is .0512 molal in K2CO3, how many grams of the salt would you have to add to 250 g of H2O? What is the mole fraction of K2CO3 in the solution?
If 100.0 mL of 1.00 M NaOH and 100.0 mL of 0.500 M H2SO4solutions are mixed, what will the concentration of the resulting solution be?
A curve of radius 72 is banked for a design speed of 120 .If the coefficient of static friction is 0.35 (wet pavement), at what range of speeds can a car safely handle the curve?
.5 mL of bromobutane (MW= 137, density= 1.27 g/mL) was caused to react with excess sodium ethoxide (MW= 68.1) to afford ethoxy butane.
It will launch him in the air and he wants to come down so he just misses the last of a number of 1.00 m diameter barrels. If the speed at the instant when he leaves the ramp is 60.0 m/s, how many b
(a) If the speed of the pot as it passes Jill's window is 52.0 m/s, what was its speed when Jack saw it go by? (b) What is the height between the two window ledges?
A 18.5-kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 84.5 N and is directed at an angle of 30.0° above the horizontal. Determin
Consider a mixture of air and gasoline vaporin a cylinder with a piston. The original volumeis 30.cm3. If the combustion of this mixture releases 1081. J of energy, to what volume will the gases exp
The load and the spring are taken down. Two people pull in opposite directions on the ends of the spring, each with a force of 190 N. Find the length of the spring in this situation.